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Phase Equilibria in the Cu2S-{Sb,Bi}2S3-Ga2S3 and Cu2S-{Sb,Bi}2S3-In2S3 Systems at 673 K

Olekseyuk I., Zhbankov O., Kumanska Y., Tkachuk V.

Polish Journal of Chemistry

2006

Vol. 80, nr 5

817-823

Phase equilibria in the Cu2S-{Sb,Bi}2S3-Ga2S3 and Cu2S-{Sb,Bi}2S3-In2S3 systems at 673 K were investigated by X-ray powder diffraction and their isothermal sections were constructed. No quaternary compounds or continuous solid solutions were found. The homogeneity region of the CuIn5S8 phase in quasibinary Cu2S-In2S3 system was determined in the range 7.3-17.2mol.% Cu2S. The Rietveld refinement of the crystal structure CuGa5S8 has been performed, using powder diffraction pattern in the zinc blende model (SG F43m, a = 0.52246(2) nm).